8.2

CVE-2026-89090: aws aws sdk for go v2 Uncaught Exception

CVSS: 8.2v4.0HighAwaiting analysis
AliasesGHSA-xmrv-pmrh-hhx2GO-2026-5764openSUSE-SU-2026:11821-1
Published 11-09-2026Last modified 24-09-2026
Open JSON

Vulnerability summary

CVE-2026-89090 is a high (CVSS 8.2) Uncaught Exception vulnerability in aws aws sdk for go v2. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.8% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 7
OPENSUSE-SU-2026:11803-1OPENSUSE-SU-2026:12107-1OPENSUSE-SU-2026:12186-1OPENSUSE-SU-2026:22032-1SUSE-SU-2026:24148-1SUSE-SU-2026:4408-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 24-09-2026
    Last modifiedVulnerability information updated.

Description

An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming application process via a crafted event stream response frame containing a header value type outside the valid range. To remediate this issue, users should upgrade to release-2026-03-23 or later, and patch any forked or derivative code.

CVSS metrics

5 scores · 3 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/aws/aws-sdk-go-v2/service11 products
  • bedrockagentcore< 1.15.2
  • bedrockagentruntime< 1.51.8
  • bedrockruntime< 1.50.4
  • cloudwatchlogs< 1.65.0
  • iotsitewise< 1.52.19
Opensuse2 products
  • keybase-client&distro=openSUSE Leap 16.0< 6.6.3-bp160.4.1
  • keybase-client&distro=openSUSE Tumbleweed< 6.6.3-5.1
Aws1 product
Github.com/aws/aws-sdk-go-v2/aws/protocol1 product
  • eventstream< 1.7.8

4 vendors · 15 products

References

6 links